If the weights retained on the $2.36 \mathrm{~mm}, 1.18 \mathrm{~mm}, 600 \mu \mathrm{~m}$, and $300 \mu \mathrm{~m}$ sieves are $30 \%$, $35 \%, 15 \%$, and $20 \%$, respectively, of the total weight of an aggregate sample, then the fineness modulus of the sample is ___________ (rounded off to 2 decimal places).

In the context of construction project management, which of the following statements is/are true: